EP 2252075 A4 20141029 - MICROPHONE UNIT
Title (en)
MICROPHONE UNIT
Title (de)
MIKROFONEINHEIT
Title (fr)
UNITÉ MICROPHONE
Publication
Application
Priority
- JP 2009051869 W 20090204
- JP 2008029572 A 20080208
Abstract (en)
[origin: EP2252075A1] A microphone unit (2) includes: a microphone substrate (13); and a partition unit (20) having a diaphragm (22). The microphone substrate (13) has a first substrate opening (14) and a second substrate opening (15). The partition unit (20) covers the first substrate opening (14) and the diaphragm (22) covers a part of the first substrate opening (14) so as to form an internal space containing an in-substrate unit space (12) formed at least in the microphone substrate (13) and communicating with outside from the diaphragm (22) via the first substrate opening (14) and the second substrate opening (15). This realizes a microphone unit in which a differential microphone configured by a single diaphragm is mounted with a high density.
IPC 8 full level
H04R 1/38 (2006.01); H04R 1/02 (2006.01); H04R 19/04 (2006.01)
CPC (source: EP US)
H04R 3/005 (2013.01 - EP US); H04R 19/04 (2013.01 - EP US); H04R 1/38 (2013.01 - EP US); H04R 2201/003 (2013.01 - EP US); H04R 2410/05 (2013.01 - EP US)
Citation (search report)
- [XY] DE 102004011149 B3 20051110 - INFINEON TECHNOLOGIES AG [DE]
- [XY] US 2005069164 A1 20050331 - MUTHUSWAMY SIVAKUMAR [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2252075 A1 20101117; EP 2252075 A4 20141029; CN 101940002 A 20110105; JP 4416835 B2 20100217; JP WO2009099091 A1 20110526; TW 200944037 A 20091016; TW I516136 B 20160101; US 2011158449 A1 20110630; WO 2009099091 A1 20090813
DOCDB simple family (application)
EP 09708896 A 20090204; CN 200980104661 A 20090204; JP 2009051869 W 20090204; JP 2009507255 A 20090204; TW 98103861 A 20090206; US 86650209 A 20090204